Specifications

50
10-1. External signal input function
Using external contact signals (12 or 24 VDC), the following collective operations for all connected air conditioning units can
be controlled: Emergency stop, ON/OFF operation, and Prohibit/Permit local remote controller operation.
(1) External signal input function setting
Setting mode Description
Not in use
(Factory setting)
External input signal will not be used.
Emergency Stop (Level signal)
Using a level signal, all the air conditioning units connected to the EB-50 will
be stopped collectively in emergency. During an emergency stop, the ON/OFF
operation from the local remote controllers will be prohibited, and the ON/OFF
operation and Prohibit/Permit settings on the EB-50 will be prohibited.
ON/OFF (Level signal)
Using a level signal, all the air conditioning units connected to the EB-50 will
be run or stopped collectively. The ON/OFF operation from the local remote
controllers will be prohibited, and the ON/OFF operation and Prohibit/Permit
settings on the EB-50 will be prohibited. Scheduled operations will not be
performed.
ON/OFF/Prohibit/Permit (Pulse signal)
Using a pulse signal, all the air conditioning units connected to the EB-50 will be
run or stopped collectively, or the operation from the local remote controllers will
be prohibited or permitted collectively.
* General equipments connected via DIDO controller (PAC-YG66DCA) cannot be collectively run or stopped by using the external signal
input function unless [Emergency Stop (Level signal)] is selected and relevant switches on the DIDO controller are set.